Crushing machine



Aug. M, w23.

D. J. NEVILL CRUSHING MACHINE 1920 2 Sheets-Sheet 2 Filed Aug. 27

INVENTOR. D. J. NEVILL.

a ,f f i D ATTORNEY. v

Patented Aug. 14, 1923.

Unirse" DAVID J.

NEVIIQL, OFIDENVER, COLORADO, AssIGNoR 'ro THE sTEARNs ROGER MANUFACTURING ooIvIrANY, A CORPORATION OF COLORADO.

raras? lie..

CRUSHING MACHINE.

To LEZ whom it may concern l j Bel it knownthat I, DAVID J. vNnvi'nn,

a subject ofi George Y, King vof England,l residing at Denver, in the county of Den-vfl ver and State of Colorado, have invented certain new and useful Improvements' in Crushing Machines, of which the following is a specification. C v l This invention relates to crushing.k machines and more particularly to mach'i-'nes'of the type in whichcoal and other similar materials are reduced to afuniforinV size through the medium of a rota-ting crushing roll.

It is an object of the present invention to simplify the construction and increase 'the eficiency of aY machine of the type mentioned, by the Yuse of acrush'ing roll of smaller diameter than those usually found in machines of the same character, lout4 rotating aty substantially the -same peripheral speed. l.

A further ,Objectv of the invention is lto provide in conjunctionwith a rotary crushf ing roll,v two cooperating aws one of which has a circular reciproca-ting movement with relation to the other for the purpose .ofbreaking the coal priorvto its comminutionby the crushing roll and ofy crowdingthe broken coal into contact with the roll whereby to insure of the machine operating con stantly at its full capacity. A

Another object of. the present invention is to provide an improved means to yieldingly hold the stationaryjaw in its operative position and to perm-it of an adjust#v ment thereof in case it is desired to place the machine in an idle position when the coal fed thereinto is. of a size not requiring further reduction. j. i, u

With the above and other objects in view all of which will fully .appear inthe course of the following description, Vmy invention consists in the construction, arrangementJ and combinations of partsv shown in the accoi'npanying drawings in the two views of which like parts areA similarly designated and in which .A Y l. 5

Figure 1 is a section ofthe machinev taken on a substantially central, .vertical plane and f Figure 2 a composite-sectional view taken at one side of the central linefthereof, on

'at Opposite sides of the frame.

. der excess pressu'ref .Applicationled August 27, r1920. Serialv No. 406,295.

' the line 22, and at the other side of the same along the line 3 3 Figure 1.

Referring to thev drawings by numerical reference characters 2 design-ates thev frame of the crushing machine, which comprises two parallel side plates Sin'terco'nnected by cross-members 4 and 5.

A p'eripherally toothed crushing roll 6 is rigidly mounted onv a shaft which is rotatably supported in journal bearings 8 rlhe bearings are slidably supported upon flat surfaces exteriorly of the side plates, and' screwsV 9' extending through threaded openings ofthe cross-member of theframe and acting upon thebe'a'rings, are provided to adjust their position for the proper alinement of the' roll relative to ythe elements ofv the machine withwhich it cooperates.

-Extending upwardly at the forward side of the roll with reference to the direction of its'ro'tation, are two jaws 10 and 12 which cooperate to feed the material 'to the roll and to subject the same to a primary breaking action. y

The jaw 12 has tothisend a'pjcircular reciprocating movement witl'r relation to the other jawv which while normally stationary, is mounted for yadjustment to; an inoperativeV position andV is capable of yielding un- 'The stationaryj aw 10 consists of a; curved plate reenforoed by external ribs, which at its upper end is suspended from' bear-ings 13v on the side platesy of the frame by means of axially alined trunnions 14. Thebearings in which the trunnions aresupported are closed'iby caps 15 which are removably connected to the side plates of the frame by means of rods 16y extendiiig through alined openings 'in the plates and the caps, and .nuts 17 screwed upon the threaded' extremities thereof. v

A steel wear-pl`ate 18 se't in a` recess of the Ycurved lower portion of ,the `1() extends in close proximity to the periphery of the crushing roll` and it is longitudinally grooved to admit the peripheral Yteeth of the, roll whichl are arranged circumferentially in equidistant rows'. The fixed jaw 10 is held in its normal.A Operative position by means of two racks 1 9 meshing with ioo '59 bea-rings 'on the framein iwhich': the shaftis te "A-mdvatn @meteen @tweemaal/ipp@ cess,oif'thejakv'by a'lsetsjcrewf42while its f oppositeendbars'upon an abutment blockv -4 'finounted 'in a e'cess o flthepcroisslnfiember' pinions 20 on va shaft 2l which is rotati ably supported:inrfbearings 22 at opposite sides ofthe frame of the machine.V

rods 23"which extend loosely throughaperturedlugs 24 formed integrally on the un-v der sideoi'the lower portion of the jjaw l0.;

The yieldingconnection.between the rods A and the aw is provided by means of springs 253 arranged around the portions otthe rod's extending rearward of the lugsand be tween two abutment plates 26 and 27. The

inner abutment plates 26 are pivotally con-` nected' with the lugs through themediumfof rounded ,ribs seatedfinV correspondingly `formed recesses7 and nuts 28 screwed upon the,"extremities-r oit' therods in engagement withffthe other abrutmentvplates 275i cooperate withnuts29 bearinguponthe forward sides'o 'the lugs7 to hold' thev different parts in their normalpositions, A

j' handwheel() at an/end of the pinion Y s .hait'facilitatesnits rotation when for the .Y purpose'of-separating thejaw l04 `from the n crushing'V rolljto/'an 4inoperative position, as

shown in brolzen; linesin Figure .1, a longitudinalinovernentqis imparted to the rods fliroughtheniediumof theracls and pin- 1ons"."j' V I V fr". *l

TheQhand wheel provided 'atits periphery with ratchet teethl .which are engaged byav gravity dog 32 pivotally mounted :at a

side'V of the I'frame"to jhold'the'j'aw in its adjusted positions. I y d' t l The racks 'are slidably supportedupon a '419,' V wardly from a. point forward of the upper portion of the crushing roll, consists of a 'rigidly connected Vvwith the respective t. rods by memset mits. 34 and, 35

:The moving jagw raw/lach'ananas'{1p-V plate'reenforced byfexternal ribs and carry? ing a steel face platez Sffinfa; recess at its.

-lowertendjt. Y The,jaw is mounted uponitwoeccentrics on the shaft ofthe fclrushingg roll by means of pit-man bones38 at lowerend. The eo-r centrics-.are keyedgto thesha-'ft between the f endsof the Crushing` roll andfthefjournal f end olii:v the' shaft' outside thefframe provides essonne/Chien: with afceliveeltlr 16- 'cjatedsonr'ce of 'motive power? :endofvthejaw 12 and the th ma' chine,TisA established "through the medium of .a mentionner eng-@ees aon@ of its ends bl'ickfig'hasitojthi's end nalboreland'a r'ecessthrouglr which extends Ling'devices;

s naceslvwithout crushing.

a screw 44 which is rotatably but longitudinally immovably mounted on the member 4. A nut 45 nonrotatabily fitted inthe recess of the VblockT is threadedrto cooperate 'with the bolt and by turning the latter 'through the medium of a wrench" appliedrto its head the block isreadilyradjusted either direction.

The correspondingadjustment of the togl ing through an opening` inthecross member. j

"fof theframe, and aboilvspringlj? arranged aroundi'the outer portion of the bolt lbetween saidmember and an abutment plate 448 held uponthe threadedend of the 'bolf Y In thf Voperation of thejcrushingmaohine i I the coal is fed'between theja-Ws at the upper end thereof. fffThe circular motion'A `oit the moving'jaw'imparted thereto by the eccen-l trics on theshaift ofthe Crushing' rolh breaks the larger lumps of coal in cooperation"withY `the relatively fixedljawand atthe same time crowdsl the material intothel space between thesperipheral.surfaceof the roll and the' wear-plate at thel lower endlofgthe stationary Yjafw' The coal 'fis thus"iconti,nuously 'fedi to thel crushing roll in pieces sutliciently small to!v enterlinto the gradually narrowing space between the txedjaw. andfthe toothed surface the roll and afcontinuous erushingrV action is obtainedwithoutithe use of auxiliary braking.

machines or mec-hani caly feed# The rushing 'strole (if -rtheV upperend of' the "moving` jaw is readily changed i by adjaa-,meer of are toggieatuanem, and break-k' age ofthe parts' by"tools,""bolts or Vother VmetalA objects inadvertently fed intoA thema.-v

chineV with the V.material :gto be; cmi'shedi is ivloideldby afyi'elding'movementlof the staf- ,f l

tionar'yjaw againstlth'e 'pressure rofthe ten? sion springs 245k which have previously been bylrotation'oi" the nuts28ftoop-:f

pose the crushing' pressureonly;

1.1.1 1ere@ power Pla-nts it frequently :ers that bothlunp and slack'coal'aretdelivered frorntho` mine atione time; Vthe slack coal;

beingl of suiicientxneness to pass to the 'furin v@freier toi mora are aannemer durerfl ent1c'onveyingV meansfo'r the line' coal or theV removal of the"crushingniaehine whilethe fine coalis beinglconveyed to thebIi-ns, it is essential that thel crushingfmachinejbe ycapable of beingfcionvertedinto a vchute for-the conveyance ofmaterial without further com# ininutiorra and :this is "r'ezvrdily'` accomplished 1n they present machine by separating` the r melissa' normally stationary jaw from the crushing' roll through the' medium vof the racks and pinions after the dog has been liftedout oi? engagement with the'teetli of the combined hand and ratchet wheel. I i

The provision ofa rapidly rotating crushing roll of small diameter permits of itsdescribed comprising'- a frame, 'a' rotaryv crushing roll, means tor its" rotation, ecceniy tries movingv in conjunction with the roll,`a normally stationary jaw extending upwardly from the roll, a loose jaw oppositethe'othe'r,

.having an" operative connection with said eccentrics, and an oscillatory connection between the vupperportion oit the loose' jaw and the trame,k .l j

2. A crushing machine of the character describedv comprising a frame, Va rotary crushing roll, eccentrics moving in conjunctio-n therewith, a normally stationary jaw extending upwardly from the roll, a loose ljaw opposite `the other having an operative connection with said eccentrics, and a toggle between the upper portion of the loose jaw and the frame.

3. AV crushing machine of the character described comprising av frame, a rotary crushing roll, eccentrics moving in conjunction therewith, a normally stationary jaw extending upwardly from the roll, a loose jaw opposite the other having an operative connection with said eccentrics, and an adjustable toggle between the upper portion of the loose aw and the frame. j

4. A crushing machine of the character described comprising a frame, a rotary crushing roll, eccentrics moving in conjunction therewith, a normally stationary jaw extending upwardly froml the roll, aV loose jaw opposite vthe other having an operative connection with said eccentrics, a toggle be tween the upper po-rtion of the loose jaw and the frame, and a spring holding the jaw in contactwith the toggle.

5. A crushing machine of the character described comprising a frame, a rotary crushing roll, eccentrics moving in conjunctio-n therewith, a normally stationary jaw extending upwardly from the roll, a loose jaw opposite the other having an operative connection with said eccentrics, a toggle between the upper portion of the loose jaw and the frame, a rod pivoted on the jaw, an

abutment plate adjustable on the' rod, and a spring between said plate and the frame" toi hold the jaw in contact with'the' toggle.-

6. A crushing machine of the character described comprising a trame, a rotary crushing roll, eccentrics moving in conjunction therewith, a normally stationary jaw extending upwardly from the roll jaw, a loose jaw opposite the other having an operative connection with said eccentrics, an abutment adjustable on the frame, a toggle between the abutment and the upperl portionof the loose jaw, and a spring tov hold the jaw in connection with the toggle.

7. In a crushing machine of the character described, a frame', a rotary crushing roll,

two jaws providing together a passage tor material to the roll, one of said jaws having at its upper end a pivotal connection with the trame, a rack connected at the' lower portion of the pivoted jaw, a rotary pinion meshing with the rack, and means for holding the pini-on against rotation.

, 8. In acrushing machine of the character described, a frame, a rotary crushing roll,

two jaws providing together a passage for' material to the roll, vone of said" jaws havn ing at its upper end apivotal connection with the frame, a longitudinally movable rack, a yieldable connection between the rack and the lower portion of the pivoted jaw, a rotary pinion meshing with the rack, and means Jfor holding the pinion against rotation.

9. In a crushing machine of the character described, a frame, a rotary crushing roll, two jaws providing together a passage for material to the roll, one of said jaws having at its upper end a pivotal connection with the frame, and provided at its lower end with an apertured lug, a rod passing through said lug, a nut on the rod engaging the lug at one side thereof, a Spring engaging the lug at the opposite side, an abutment on the rod engaging the spring, a rack on the rod, a rotary pinion meshing Vwith the rack7 and means for holding the pinion against rotation.

10..In a crushing machine of the character'described, a frame, a rotary crushing roll, two jaws providing together a passage for material to the roll, one of said jaws having at its upper end a pivotal connection with the frame, a rod having a longitudinal movementon the lower portion. ot the pivoted jaw, a spring arranged to yieldingly oppose said movement, a rack on the rod, a rotary pinion meshing with the rack, and meansl to hold the pinion against ro` tation.

ll. In a crushing machine of the character described, a frame, a rotary crushing roll, two jaws providing together a passage Jformaterial to the roll, oneof said jaws having at its upper end a pivotal connecvio tion with the fframe, a rackgconnected at the lower vend `of thepivoted jaw, a rotary pinion; meshing with theprack, a combined hand and ratchet wheel in connection with the pinion, anda pawlV acting upon the ratchetiwheel to hold the pinion against Y rotation,

12.` A zcrushingmachine ofthe character' described, comprising a Vrani'e, a rotaryl crushing roll, a stationary jaw extending upwardly tromtheuroll adjacent the periph M ery thereof, a` loose jaw `opposite-the other,v

e'ccentrics supporting the loose jaw at its' lower endand atjoggle between the opposite end v ofthe same and the frame.

f 13.VV crushingvmachine `oi the .character vdescrilgied fcomprisintijr a l'ramey rotary f crushing roll,V a normally stationary Jawy extendingupwardly from the roll contiguous tothe lower 'portion thereoi,7 and .a moviin-g aw co-operating withthe stationary j aw v Y,for the diminution of materialbetween them and having itsilower end spacedjfrorn the lowerportmn of the saine to provide a paelsagefor material fed .between the/jaws7V `to n the crushing roll.

Vdescribed comprising arame, a pair of' V M A crushing 1if1achineofv the-character downwardly converging crushing jagwsgone of which has areciprocating movement with relationftothe otherythe lowerfend of the reciprocating jawv being separated 'from the face of :the other vjaw-to 4fomifav narrow throat for the passageof coinminutedgVmaterial, and the other, relatively `Stationary jaw n being extended below A Said throat to provide a;surface for thezf'urtiher diminution of the materalland a rotary icrushingrollfer jaw being extendedunderneath said throat -Qio l5. A ycrushing machine ofthe character terial7 and the other;relativelyfstationary 5oY y to provide a surfacefat an angleto; its work Y' ing facefor the further, diminution 'of the material; f and a rotary LcruSli-inizi@.roller .dief .A K Vposzed tol act upon the,inateri'alpassingacrossV f y. n 

